There is a difference between a stomatopod being able to strike and eat and doing so. This also varies considerably with size and species. A 3.5 inch O scyllarus can strike weakly after a couple of days and is back at full power in a week to 10 days. They will take soft food and eat part of the molt skin after a day or two but won't tackle a snail for over a week. A 6 inch O. scyllarus will be at least twice as slow recovering.